These 5 element wide angle 1.25" eyepieces use the latest design and are broadband fully multi-coated (FMC).
They have a straight rubber eyecup and offer long eye-reliefs form 13mm to 17mm making them very comfortable
The nosepieces are internally blackened and all air to glass surfaces have a multi-layer coating for superior
contrast and light transmission. They feature superior sharpness across the field and a generous 66 degree
field of view when compared to typical 4-element Super Plossl designs.
The nosepiece has a safety groove so that it is more difficult for the eyepiece to unintentionally drop off
the telescope. The nosepiece is internally threaded and will accept standard 1.25" astronomical filters.
A pair of dust caps is included.
Eye Relief: 20mm (17mm Eye Relief), 15mm (13mm Eye Relief), 9mm (15mm Eye Relief), 6mm (14.8mm Eye Relief).